Tax Computations and Filing

Tax compliance in Nigeria comes down to two things: getting the computation right and meeting the deadline. Miss either one, and the consequences are immediate — penalties, interest charges, and unwanted attention from FIRS or state tax authorities. Our Tax Computations and Filing service handles this entire process for you — accurately, on schedule, and fully documented — so you can focus on running your business.

What We Offer

•      Accurate computation of Value Added Tax at the applicable rate (7.5%)

•      Monthly VAT filing with FIRS within statutory deadlines

•      Input and output VAT reconciliation

•      Maintenance of VAT records to support filings and any future review

•      Correct WHT deduction on applicable transactions and payments

•      Timely remittance to the relevant tax authority

•      Issuance and tracking of WHT credit notes

•      Reconciliation of WHT records against supplier and customer transactions

•      Accurate monthly PAYE computation for all employees

•      Application of current tax reliefs, allowances, and tax tables

•      Timely filing and remittance to the relevant state Internal Revenue Service

•      Maintenance of PAYE schedules to support payroll and audit needs

•      Preparation of annual CIT computations in line with current tax laws

•      Application of available capital allowances and deductions

•      Filing of annual CIT returns with FIRS within statutory deadlines

•      Coordination with year-end financial statements to ensure accuracy

•      Computation of employer and employee pension contributions

•      Industrial Training Fund (ITF) contribution computation and remittance

•      Nigeria Social Insurance Trust Fund (NSITF) compliance support

•      Reconciliation of statutory contribution records

•      Preparation and filing of Annual Returns with FIRS and relevant state IRS

•      CAC Annual Returns filing to maintain good standing

•      Consolidation of the full year's tax position into accurate annual filings

•      Coordination across all tax types to ensure nothing is missed

Who This Is For

•      Businesses of any size that need accurate, deadline-driven tax filing handled by a qualified professional

•      Companies with multiple, overlapping tax obligations who want a single point of accountability

•      Businesses that have received queries or penalties due to past filing errors or delays

•      Startups and SMEs without an in-house tax function

•      Established companies looking to offload routine tax computation and filing to a trusted partner

Our Approach

1.  Map — We identify every tax obligation applicable to your business.

2.  Compute — We calculate each tax accurately, based on current records and regulations.

3.  File — We submit returns and remit payments within statutory deadlines.

4.  Document — We maintain clear records and supporting schedules for every filing.

5.  Track — We manage a compliance calendar so no deadline is ever missed.

Why GSA Professional Services

•      Led by a Chartered Accountant (ACA) with over 10 years of experience across banking, capital markets, taxation, and financial reporting

•      Direct, firsthand experience working within a state Internal Revenue Service — real insight into how tax authorities assess and review businesses

•      A practical, business-owner-friendly approach — complex financial and regulatory matters translated into decisions you can act on

•      A single, trusted partner for compliance, reporting, and strategy — so your finance function isn't scattered across disconnected providers