People often ask whether married couples file one return in Kenya. They do not. Every individual with taxable income is assessed separately, with their own PIN, their own return and their own reliefs. That makes some things simpler and some more subtle. This guide covers the main points for couples, whether married or not, who earn separately but share a life and finances. It is general information.

Each person has their own PIN and return

Both partners who earn income should have a PIN and file their own return. One cannot file for the other unless properly authorised, and the income of one partner is not added to the other's. If one partner earns nothing, they may still need a PIN for other purposes such as owning property. How to get a KRA PIN and how to register on iTax explain the steps.

Reliefs belong to the person who qualifies

Personal relief is given to each resident taxpayer. Insurance relief is claimed by the person who pays the premium on a qualifying policy, and pension relief by the person who contributes. So two partners can each claim their own, but they cannot transfer an unused relief to the other. Check who actually pays each premium, and make sure the policy documents show the right name. Personal relief and tax reliefs for employees explained, how to claim insurance relief on PAYE and the tax reliefs calculator show how.

Mortgage interest relief

Relief on interest for a home you live in is given to the borrower. If both partners are on the loan, check how the interest is shared and who can claim, within the cap. Mortgage interest relief for homeowners explains the conditions, and getting the lender's annual interest certificate in the right names makes a claim easy.

Who is the owner of a property?

Rent and gains follow ownership. If a rental property is owned by one partner, that partner is taxed on the rent. If both are owners, the income is shared in proportion to ownership. This is a reason to record ownership carefully when you buy; buying property with others: co-ownership basics covers the options. Use the rental income tax calculator to estimate each person's tax, and read rental income for individuals and companies.

Joint bank accounts and mobile money

A joint account does not change who earns the money. Interest is attributable to the owners according to their shares. If one partner's business income flows through a joint account, the other should not treat it as their own income, and the owner should still keep clear records. Use separate accounts or wallets for business activity where you can.

Gifts between partners

Transfers between partners for living costs or shared expenses are generally not income. However, if one partner gives the other an income-producing asset, such as shares or rental property, the income that follows belongs to the new owner for tax. Think carefully before moving assets, and take advice, because there can be other consequences such as stamp duty on property transfers.

Running a business together

If you run a business together, you need to decide the structure: a partnership, a company or a sole trader with an employee spouse. Each is taxed differently, and payments between the business and its owners need to be recorded properly. Sole trader or limited company and dividends and paying yourself from a company set out the options. Paying a spouse for real work is allowed, but it must be genuine and recorded through payroll.

Planning together

Because each person is taxed separately, there can be room to plan, for example by considering who holds investments or who pays certain premiums. But there are limits, and schemes that only shift income for tax are risky; the difference between tax avoidance and tax evasion explains the line. Focus on the basics: use every relief available to each of you, keep records and meet your deadlines.

Keep a shared calendar and folder

A simple routine helps. Keep a shared calendar of both partners' deadlines, and a folder for each person's documents. A year of tax deadlines for individuals in Kenya gives the pattern, and the monthly income and expense planner helps couples budget together.

When life changes

Marriage, separation, a new baby or the death of a partner all affect your finances and sometimes your tax. Update your records and your PIN profile, and ask an adviser about property, insurance and wills. Clear records and early conversations make every change easier to manage.