Getting a Mortgage in Tanzania: Real Costs

When the rate changes, the payment does not just change — the term does

A variable-rate mortgage re-prices your instalment when the rate moves. Leave the instalment where it is and the loan takes longer to clear. Keep the term and the instalment rises.

Borrowing 80,000,000 TZS over 20 years, moving from an illustrative 12% to 14% raises the monthly instalment by about 113,948 TZS if the term is fixed.

Paying the original instalment instead keeps the monthly figure affordable, but at 14% the loan is not repaid in 20 years — it runs longer, and the extra months are where the cost of the rate rise actually lands.

Before signing, ask what the rate is tied to, how often it can be reviewed, and whether the lender adjusts the term or the instalment by default. The answer decides which of those two you get.

The short answer

Plan to have roughly 25–30% of the purchase price in cash before you seriously start looking, and treat the monthly instalment as only one part of what the house costs you.

The upfront cash is not a deposit alone. It covers the deposit, stamp duty, legal and conveyancing fees, and title registration. Buyers who budget only the deposit routinely discover they cannot complete.

How the monthly payment is built

Three numbers decide your instalment: how much you borrow, the interest rate, and the term in years.

The calculation is the standard amortising formula, solved so the loan is exactly repaid at the end of the term: M = P × r ÷ (1 − (1 + r)^−n), where r is the monthly rate and n the number of months.

Because interest is charged on the outstanding balance, early instalments are mostly interest and late ones mostly principal. That is also why the term matters so much: a longer term lowers what you pay each month but raises what you pay in total.

What the deposit changes

A larger deposit does two things at once: it reduces the amount you borrow, and it removes the interest on everything you no longer borrow.

On a 100,000,000 TZS house, a 10% deposit means borrowing 90,000,000 TZS; a 20% deposit means borrowing 80,000,000 TZS.

That 10,000,000 TZS less principal saves about 16,426,067 TZS of interest over 20 years at an illustrative 12%. The saving is larger than the extra deposit, which is why the deposit is the most efficient money you will put into the purchase.

What the term does to the total

Stretching the term is the easiest way to make the instalment affordable and the most expensive way to buy the house.

Read the first and last rows together. Moving from 10 years to 25 years cuts the monthly instalment by about 305,188 TZS, but adds roughly 115,041,684 TZS of interest. You are renting the difference from the bank, and it is not cheap.

The costs beyond the loan

These are the published market ranges for buying property in Tanzania, as percentages of the purchase price.

Two details catch buyers out. Agent commission is negotiable and sometimes paid by the seller, so establish who pays before you sign anything. And land in Tanzania is held on a Right of Occupancy rather than owned outright — commonly 33 or 99 years, renewable — so ask which applies to the title you are buying.

Stagger the cash flow deliberately rather than treating it as one lump. The deposit falls due when you sign the sale agreement, the bank's valuation has to be paid before the mortgage releases, and stamp duty and legal fees land around completion. Buyers who mentally allocate a single pot discover they cannot cover the gap between those dates, even though the total they saved was sufficient.

Affordability in shillings, not percentages

Lenders will often approve a loan that leaves you uncomfortably stretched, so decide your own ceiling before a bank decides it for you.

Work backwards from take-home pay rather than gross salary. Your PAYE, pension and any HESLB deduction all come out before the mortgage does, so the instalment has to fit inside what actually reaches your account.

Use the Tanzania salary calculator below to see your real take-home, then check the instalment against it with the mortgage calculator. A useful discipline is to test the instalment at a rate two or three points higher than you were quoted: rates move, and a payment that only works at the introductory rate is not a plan.

What lenders actually check

Approval turns more on provable income than on the property you have chosen.

Get pre-approval before you start viewing property. It establishes your ceiling, and it signals to a seller that you are a buyer who can actually complete — which matters in a market where a property can attract several offers at once.

Be clear about what pre-approval is not. It confirms the bank's intent to lend rather than a final commitment, and the bank will still value the property independently before releasing funds. If that valuation lands below the price you agreed, the shortfall comes out of your own pocket, so keep headroom in your cash budget.

• Proof of consistent income — payslips, bank statements, or audited accounts if you are self-employed.
• A satisfactory credit record with your bank.
• Evidence of the deposit savings, not a promise to save them.
• A valid national ID or passport.
• A satisfactory valuation of the property by the lender's own valuer.

What the Mwangas pay for a 100,000,000 TZS house

On a 100,000,000 TZS house with a 20% deposit you borrow 80,000,000 TZS; at an illustrative 12% over 20 years that is about 880,869 TZS a month and roughly 131,408,538 TZS of interest over the term. Before you start you also need the 20,000,000 TZS deposit, 1,000,000 TZS stamp duty and 1,000,000–2,000,000 TZS in legal fees — about 22,000,000–23,000,000 TZS in cash.

The Mwangas are buying a first house in Dodoma. The deposit is only part of what they need before the loan starts, which is the part that surprises most buyers.

Common mistakes

Most of these are cheap to avoid and expensive to discover late.

• Budgeting for the deposit and forgetting stamp duty, legal fees and registration.
• Choosing the longest available term to get the lowest instalment, then paying roughly double the interest.
• Comparing only interest rates between lenders while ignoring arrangement fees and compulsory insurance.
• Failing to verify the title at the Ministry of Lands before paying any deposit.
• Assuming the bank's valuation will match the price you agreed — a lower valuation means a bigger deposit.

Related guides

Getting a Mortgage in Tanzania: Real Costs FAQs