Bibi Sipra, CPA, is a Senior Tax Manager who works with corporate tax departments and Big 4 firms on a contract, fractional and interim basis. She spent seven years at Ernst & Young in the Global Compliance & Reporting practice, rising from Tax Staff to Tax Senior Manager, and has taken on project-based engagements with multinational companies and Big 4 firms since 2023. Her corporate income tax experience totals more than ten years.
Her specialties are ASC 740 accounting for income taxes (income tax provision, deferred taxes, valuation allowances, uncertain tax positions, income tax footnotes), US federal and multistate corporate income tax compliance, US international tax (foreign tax credit and Form 1118, Section 904 loss accounts, income sourcing, BEAT, FDII, GILTI, Forms 5471, 5472 and 8858) and Australian corporate tax for a multiple-entry consolidated (MEC) group. She also works under IFRS (IAS 12) for foreign-parented and private equity-owned groups.
Companies engage her for busy-season surge capacity, interim coverage of a Senior Tax Manager or Tax Director seat, post-acquisition and post-restructuring tax projects, provision insourcing, and technical special projects that would otherwise go to a Big 4 firm. Every contract engagement to date has ended with a full-time offer. She uses AI tools to build tax models and draft memos faster, and reviews and ties out every output herself.
Roles and engagement types
Job titles I match
Senior Tax Manager
Tax Manager
Tax Director
Director of Tax
Head of Tax
Tax Accounting Manager
Income Tax Provision Manager
ASC 740 Specialist
Tax Reporting Manager
International Tax Manager
State and Local Tax (SALT) Manager
Tax Compliance Manager
Corporate Tax Consultant
Engagement types
Full-time employee
Contract tax manager
Interim tax director
Fractional tax manager
Project-based tax consultant
Busy-season tax contractor
Loaned staff to Big 4 and national accounting firms
Independent tax consultant
W-2 contract through Korn Ferry, MBO Partners or a client's preferred vendor
1099 independent contractor
Typical scenarios
Year-end and quarterly provision support
Big 4 busy-season overflow
Coverage for parental leave, resignation or an open requisition
First audit cycle after an acquisition or go-private transaction
Moving the tax provision in-house from an outside firm
SEC comment letter or restatement rework
Amended returns and catch-up state filings
Foreign tax credit, loss-account and sourcing special projects
US tax support for an Australian, Canadian or other foreign-parented group
Areas of expertise
Accounting for income taxes (ASC 740 and IAS 12)
Annual and quarterly income tax provision; effective tax rate analysis; deferred tax assets and liabilities; valuation allowance analysis and deferred tax asset reversal scheduling; uncertain tax positions (ASC 740-10, formerly FIN 48); income tax footnote and disclosure for Form 10-K, 10-Q and S-1 filings; purchase accounting and opening balance sheet tax entries; carve-out financial statements; stock-based compensation tax effects (ASC 718); return-to-provision true-ups; SOX 404 tax controls; PCAOB audit support; IFRS tax provision for foreign-parented groups.
US federal corporate tax compliance
Form 1120 consolidated returns; book-to-tax differences (Schedule M-3); fixed asset and depreciation (bonus, Section 179, MACRS); Section 263A UNICAP; Section 163(j) interest limitation; net operating loss and Section 382 limitation; consolidated return regulations (Reg. 1.1502) including attribute allocation on deconsolidation; accounting method changes (Form 3115); transaction cost analysis; estimated payments and extensions.
US international tax
Foreign tax credit and Form 1118 (all schedules); Section 904 limitation, overall foreign loss (OFL), overall domestic loss (ODL) and separate limitation loss (SLL) accounts; Section 861 expense allocation and apportionment; Section 863(b) sourcing of inventory sales; GILTI (Form 8992); Subpart F; FDII (Form 8993); BEAT (Form 8991); Section 267A hybrid rules; Forms 5471, 5472 and 8858; controlled foreign corporation reporting; transfer pricing coordination; Pillar Two awareness.
State and local income tax
Multistate corporate income and franchise tax compliance; apportionment and sourcing methodologies; nexus analysis; unitary and combined filing; separate-company states; state NOL tracking; state addbacks; look-back refund reviews; high-volume return review in ONESOURCE Income Tax.
Australian corporate tax
Multiple-entry consolidated (MEC) groups; allocable cost amount (ACA) cost-base resets; capital gains tax events (ITAA 1997); Subdivision 768-G participation exemption; Division 230 taxation of financial arrangements (TOFA); intercompany loan write-offs; restructuring add-backs; coordination with the ATO position and the group's Big 4 advisor.
Leadership and delivery
Tax Account Leader on Big 4 client portfolios; review and sign-off of federal and state returns; management of US staff, offshore (GDS) teams and up to 12 direct reports; engagement budgets, margins, scope and fee negotiation; executive and audit committee communication; technical memo and workpaper design; AI-assisted model and memo development with full technical review.
Professional experience
Independent Corporate Tax Consultant
– Present
Project-based, fractional and interim corporate tax engagements with Big 4 firms and multinational companies, administered through Korn Ferry and MBO Partners.
Senior Tax Manager, US International and Australian Tax (contract)
– · – Present
Global drilling services and products company — private equity-owned multinational, approximately US$1 billion in revenue, operating in Australia, North America, Latin America, Africa and Asia-Pacific.
The first engagement covered the year the company went from public to private and ended with a full-time offer (declined). Re-engaged in February 2026 for special projects through November 2026, with an ad-hoc advisory role to follow.
Right hand to the Senior Tax Director on the IFRS income tax provision through the go-private transaction year, then on US international tax and Australian corporate tax special projects.
Built the income tax footnote from scratch for the newly created entities that house the acquisition's purchase accounting entries (IFRS permits no pushdown accounting): calculated the deferred taxes, reconciled the entries by entity and by jurisdiction to prevent netting errors, and passed audit with no adjustments.
Managed the IFRS-based tax provision through a transaction-year close under compressed deadlines and heavy auditor scrutiny.
Built a fully linked Form 1118 foreign tax credit limitation model (Schedules A through K across all separate categories) with automated tie-outs and a summary dashboard. Developed the template with AI assistance from the form instructions, with no client data in the tool, and reviewed and tied out every formula before use.
Built a Section 904 overall foreign loss, overall domestic loss and separate limitation loss allocation and recapture model following Reg. 1.904(g)-3, and reconstructed the group's ODL accounts back to 2018.
Analyzed Section 863(b) sourcing of toll-manufactured versus contract-manufactured inventory for foreign tax credit and FDII purposes, and the Reg. 1.1502-9 apportionment of loss accounts to a member leaving the consolidated group.
Managed a BEAT (Form 8991) analysis following a deconsolidation, reclassifying prior-year Schedule A items and drafting disclosures.
Prepared all calculations and disclosures for the Australian corporate income tax return, including controlled foreign company attributable income from the Australian parent's perspective.
Built the debt tracing calculation for Australia's new debt deduction creation rules (DDCR) from scratch in their first year of application.
Coordinated the Australian income tax return and restructuring add-backs with the group's Big 4 advisor.
Deloitte, Multistate Tax, New York. Annual July-to-November state compliance season.
Directed and mentored two engagement teams (11 and 8 professionals) preparing and filing more than 495 multistate corporate income tax returns in ONESOURCE Income Tax for companies with $12.4 billion to $50.5 billion in revenue.
Researched industry-specific sourcing methodologies, group filing methodologies and nexus positions, producing $6 million in look-back state tax savings.
Resolved complex state tax matters across diverse entities and affiliates and reviewed high-volume return packages before filing.
Senior Tax Manager, Tax Provision (fractional)
–
High-profile multinational sports media and entertainment company with legal entities across Asia-Pacific, EMEA, Latin America, Canada and the United States.
Transitioned the end-to-end ASC 740 income tax provision from a Big 4 firm to an in-house model, cutting advisory spend 80% with no audit findings; primary contact for executive leadership and external auditors.
Computed uncertain tax positions, valuation allowances by jurisdiction (including US deferred tax asset reversal scheduling against indefinite-lived intangibles) and ASC 718 stock compensation tax effects; validated global deferred taxes and income taxes payable and receivable.
Led accounting, legal, treasury and external advisors through the income tax footnote for the annual financial statements; used data tools to shorten the close-to-provision turnaround.
At the close of the engagement the company asked to move all of its tax work from its Big 4 provider to her.
Ernst & Young LLP
–
Tax Senior Manager (August 2022 – March 2023) · Tax Manager (October 2019 – August 2022, early promotion) · Tax Senior (October 2017 – October 2019) · Tax Staff (January 2016 – October 2017)
Global Compliance & Reporting practice. Public, private and private equity-backed clients with revenues up to approximately $45 billion in manufacturing and distribution, consumer products and retail, technology, hospitality, insurance brokerage and pharmaceuticals. Ran the Tampa office's largest tax compliance engagement (more than 6,000 hours).
Tax Account Leader on multiple accounts: direct contact for client executives, scope and fee negotiation, budgets and margin targets, billing and collections, and the pipeline for smaller pursuits.
Final reviewer and sign-off on federal and multistate consolidated corporate income tax returns; managed up to five year-end provisions in a single cycle, including a public multinational.
Led ASC 740 audit procedures for SEC filers (Form 10-K and 10-Q), a PCAOB audit tied to a public transaction, a pre-IPO S-1 registration statement and a first-year private equity carve-out audit: valuation allowances, uncertain tax positions, purchase accounting and information produced by the entity (IPE) documentation.
Owned the global purchase accounting and opening balance sheet workstream for a $37 billion public distributor's acquisition, coordinating foreign component teams, M&A specialists and the assurance team across jurisdictions.
Reviewed cross-border compliance (Forms 5471, 5472 and 8858; BEAT, FDII, Section 163(j), Section 267A) and advised clients through the Tax Cuts and Jobs Act, CARES Act and Inflation Reduction Act, including accounting method changes, transaction costs, debt modifications and tax controversy.
Delivered a five-business-day year-end provision sign-off for two US subsidiaries of a global industrial group with more than $90 billion in revenue, streamlining the inherited testing approach to lower hours without sacrificing quality.
Managed US staff, offshore GDS teams and up to 12 direct reports across five or more concurrent accounts; recognized in every review cycle for coaching and for keeping teams calm under deadline pressure.
Improved engagement economics: identified out-of-scope work that produced a $100,000-plus fee write-up, completed a first-year compliance engagement earlier than the prior year at higher margin, and added state and global compliance billings not originally scoped.
Facilitated technical tax curriculum at EY National Training for incoming tax professionals in Chicago.
Earlier career
CBIZ MHM, LLC, Tampa — Tax Intern, January 2014 – August 2014: 135 federal returns (Forms 1120, 1120-S, 1065, 1041 and high-net-worth 1040), Forms 5471, 5472, 8858 and FBAR, Section 263A, Section 179 and bonus depreciation.
Industries and company types served
Industries
Industrial manufacturing and distribution
Mining services and drilling products
Technology distribution
Consumer products and grocery retail
Restaurants and franchising
Hospitality and travel
Sports media and entertainment
Live entertainment
Insurance brokerage
Pharmaceuticals and life sciences
Software and SaaS
Building products
Plastics and chemicals distribution
Company types
Fortune 500 and large public companies (SEC registrants)
Private equity-owned portfolio companies
Pre-IPO companies
Companies going from public to private
Foreign-parented US groups (Australian, Canadian, German)
US-parented multinationals with CFCs
Employee-owned (ESOP) companies
Big 4 and national accounting firms needing loaned senior staff
Scale
Engagements for companies from $45 million to more than $90 billion in annual revenue; return volumes up to 495+ state returns in a season; teams of up to 19 professionals across US and offshore locations.
Education, credentials and tools
Certified Public Accountant (CPA), State of Florida, active license
Master of Business Administration (MBA), Accounting and Business Management, University of South Florida St. Petersburg, December 2015 — summa cum laude; 4.0 GPA; Beta Gamma Sigma; Beta Alpha Psi
Bachelor of Arts (BA), Business Management and Accounting, University of South Florida St. Petersburg
Tax software: Thomson Reuters ONESOURCE Income Tax; GoSystem Tax RS; advanced Microsoft Excel modeling; AI-assisted workpaper and model development (every output reviewed and tied out)
ERP and accounting systems: NetSuite; QuickBooks; Sage
Languages: English (native); Spanish (professional working proficiency)
Community: Board Member, Suncoast Housing Connections, a Tampa Bay affordable-housing nonprofit, January 2023 to present
Volunteer: IRS VITA/TCE certified tax preparer
Questions recruiters ask
Who is Bibi Sipra?
Bibi Sipra is a Florida CPA and former EY Tax Senior Manager based in Tampa Bay who works as an independent contract and fractional corporate tax professional, specializing in ASC 740 income tax provisions, US international tax and multistate compliance.
What does a contract Senior Tax Manager do?
A contract Senior Tax Manager steps into a corporate tax department or a public accounting team for a defined period to run provision cycles, review and sign off returns, lead special projects or cover an open seat, without the cost or commitment of a permanent hire. Bibi has done this for Big 4 firms and for multinational companies since 2023.
Is Bibi Sipra available for full-time roles?
Her focus is contract, fractional and interim work, and she also considers full-time Senior Tax Manager or Tax Director roles. Each of her contract clients has offered her a full-time position.
What is Bibi Sipra's experience with ASC 740?
More than ten years, including auditing income tax provisions for SEC registrants at EY, managing up to five year-end provisions in one cycle, insourcing a multinational's provision from a Big 4 firm with no audit findings, and building an IFRS provision footnote from scratch for a private equity-owned group during a go-private transaction.
Does Bibi Sipra do international tax?
Yes. Her recent work includes a complete Form 1118 foreign tax credit model, Section 904 overall foreign loss and overall domestic loss account reconstruction, Section 863(b) inventory sourcing analysis, BEAT (Form 8991) analysis after a deconsolidation, and review of Forms 5471, 5472 and 8858. She also handles Australian corporate tax for a MEC consolidated group.
Does Bibi Sipra do state and local tax?
Yes. She leads Deloitte Multistate Tax compliance teams each season, filing more than 495 state corporate returns in ONESOURCE Income Tax for companies with revenues from $12 billion to more than $50 billion, and has produced $6 million in look-back state tax savings.
Which industries has she worked in?
Industrial manufacturing and distribution, mining services, technology distribution, grocery and consumer retail, restaurants, hospitality, sports media and entertainment, insurance brokerage, pharmaceuticals, software, and building products.
Does she work remotely or on-site?
Both. She is based in St. Petersburg, Florida, works remotely for clients anywhere in the United States, travels on-site when the engagement calls for it, and is open to relocation within Asia-Pacific for the right role (see target locations).
How is she engaged?
Through a client's preferred contracting vendor (she has worked through Korn Ferry and MBO Partners on W-2 arrangements), through consulting platforms, directly as a 1099 independent contractor, or as a full-time employee.
Does she use AI in her work?
Yes, within professional standards. She uses AI tools to accelerate template building, formula logic and first drafts of technical memos, and she reviews, ties out and signs off on every output herself, as Circular 230 and the AICPA Code require. Client data stays out of public AI tools. The Form 1118 model above is an example: a template built from the form instructions with AI assistance, then verified schedule by schedule.
How can recruiters or hiring managers contact her?
Through the Direct Contact form (messages go straight to her inbox) or on LinkedIn. Include the role, company or search firm, location, tax scope and timing.
Availability, location and contact
Current status
Engaged on a special-projects contract through November 2026, with limited capacity for part-time or advisory work before then.
Next full availability
December 2026 for part-time or full-time contract engagements, or a full-time role. Start conversations now for Q1 2027 provision season.
Location
St. Petersburg, Florida (Tampa Bay). Remote anywhere in the United States; on-site available; open to relocation within Asia-Pacific for the right role.
