If you have checked your KRA iTax account recently, you may have come across the term “principal tax.” It is an important term to understand, especially if you have an outstanding tax bill and want to take advantage of Kenya’s 2026 tax amnesty.
In simple terms, principal tax is the underlying tax amount that you owe. Interest, penalties and fines are separate amounts that may be added to that tax liability.
This distinction matters because the 2026 KRA tax amnesty does not wipe away the principal tax. Instead, it provides relief from qualifying interest, penalties and fines, subject to the conditions of the programme.
What does principal tax mean?
Think of principal tax as the main tax debt before additional charges are considered.
For example, imagine KRA determines that you owe KSh100,000 in tax.
If you do not pay that amount when required, additional interest or penalties may arise.
Your account could therefore eventually look something like this:
| Tax liability | Amount |
|---|---|
| Principal tax | KSh100,000 |
| Interest | KSh20,000 |
| Penalties | KSh10,000 |
| Total outstanding | KSh130,000 |
In this example, KSh100,000 is the principal tax.
The additional KSh30,000 consists of interest and penalties.
The exact amounts and charges on an individual taxpayer’s account will depend on their particular tax obligation and circumstances.
Why is principal tax important under the KRA tax amnesty?
This is where the distinction becomes particularly important.
Kenya’s 2026 Tax Amnesty Programme covers qualifying interest, penalties and fines relating to tax liabilities and debts accrued up to December 31, 2025.
However, KRA states that the principal tax itself is not waived. Where a taxpayer has outstanding qualifying principal tax, it must be fully paid by December 31, 2026 to qualify for the corresponding amnesty relief.
So, using the earlier example:
Principal tax: KSh100,000
Interest: KSh20,000
Penalties: KSh10,000
If the taxpayer satisfies the amnesty conditions and pays the KSh100,000 principal tax, the qualifying interest and penalties can be waived.
The taxpayer could therefore potentially avoid paying the additional KSh30,000, while still having to settle the KSh100,000 principal tax.
That is why the tax amnesty should not be interpreted as “KRA is cancelling my tax debt.”
It is more accurately a relief programme for qualifying interest, penalties and fines once the required conditions are met.
What if I have already paid the principal tax?
This is one of the situations where the amnesty can be particularly straightforward.
Suppose you previously owed KSh100,000 in principal tax and have already paid it.
However, your KRA account still shows:
- KSh20,000 interest
- KSh10,000 penalties
If these amounts relate to qualifying periods up to December 31, 2025, KRA says you can receive the 100% waiver of the qualifying interest, penalties and fines automatically. You do not need to make a separate amnesty application in this situation.
In simple terms:
You paid the tax → qualifying additional charges remain → the amnesty can remove those qualifying charges.
What if I still owe the principal tax?
You can still qualify for the 2026 amnesty, but there is an important condition.
KRA says taxpayers with outstanding principal tax relating to periods up to December 31, 2025 must fully settle the qualifying principal tax by December 31, 2026.
For example:
You owe:
Principal tax: KSh500,000
Interest and penalties: KSh150,000
Your potential total liability is therefore KSh650,000.
Under the amnesty, you do not simply ask KRA to cancel the entire KSh650,000.
Instead, you need to deal with the KSh500,000 principal tax according to the amnesty conditions.
Once the qualifying principal tax has been fully paid, the eligible interest, penalties and fines can be waived.
What if I cannot pay the principal tax at once?
KRA says taxpayers who cannot settle qualifying principal tax in a single payment can use a payment plan through iTax.
However, there is an important deadline: the qualifying principal tax under the payment arrangement must still be fully cleared by December 31, 2026 for the taxpayer to benefit from the amnesty.
For example, if you owe KSh300,000 in qualifying principal tax, you may be able to arrange payments rather than finding the entire KSh300,000 immediately.
But the payment arrangement does not mean the principal tax is forgiven.
It is simply a way of settling the amount while meeting the conditions for the amnesty.
Does the KRA tax amnesty waive principal tax?
No.
This is perhaps the most important point to remember.
The 2026 tax amnesty provides relief on qualifying penalties, interest and fines. KRA specifically states that principal tax must be paid for a taxpayer with outstanding principal tax to benefit from the amnesty.
A simple way to remember it is:
Principal tax = the underlying tax you owe.
Interest and penalties = additional amounts that may arise because of the outstanding tax or non-compliance.
2026 amnesty = relief from qualifying additional charges, not the principal tax itself.
What happens if you have no principal tax but have penalties?
You may be in a different position.
KRA says taxpayers who have no outstanding principal tax for qualifying periods up to December 31, 2025 but still have qualifying interest, penalties or fines can qualify for the amnesty automatically.
For example, imagine you previously owed KSh80,000 in principal tax.
You paid the KSh80,000, but your iTax account still shows KSh15,000 in qualifying penalties and interest.
If you meet the applicable conditions, the KSh15,000 may be covered by the amnesty.
This is different from someone who still owes the original KSh80,000.
What about unfiled tax returns?
The distinction also matters if you have not filed some of your tax returns.
KRA says taxpayers with outstanding returns for periods up to December 31, 2025 should file those returns during the amnesty period.
Where a taxpayer files a return and there is no outstanding principal tax, the applicable late-filing penalties can qualify for the amnesty.
Where the return results in principal tax being payable, that principal tax must be fully paid by December 31, 2026 for the taxpayer to obtain the applicable amnesty relief.
What tax debts qualify for the 2026 amnesty?
The programme covers qualifying tax liabilities and debts accrued on or before December 31, 2025.
Tax liabilities, interest and penalties arising from January 1, 2026 onward do not qualify under this amnesty.
This means a taxpayer should not assume that every penalty or interest amount appearing on iTax will automatically disappear.
The tax period matters.
What is the deadline?
The 2026 KRA Tax Amnesty Programme runs from July 1, 2026 to December 31, 2026.
For taxpayers with outstanding qualifying principal tax, KRA says the principal amount must be fully settled by December 31, 2026 to qualify for the amnesty.
KRA also warns that interest and penalties on unpaid principal tax continue to accrue during the amnesty period. They are not simply frozen until December.
The easiest way to understand principal tax
If you are confused by your KRA bill, think of it in three layers:
1. Principal tax
The underlying tax liability.
2. Interest
An additional amount that may arise when tax remains unpaid.
3. Penalties and fines
Additional charges associated with particular compliance failures or offences.
The 2026 amnesty is primarily concerned with the second and third categories, subject to the programme’s conditions.
The first category — principal tax — still has to be settled.
What should you do if you have an outstanding KRA balance?
If you think you may benefit from the amnesty, start by checking your iTax ledger and identifying exactly what makes up your outstanding balance.
Do not look only at the total figure.
Find out:
- How much is principal tax?
- How much is interest?
- How much is penalties or fines?
- Which tax periods do the amounts relate to?
- Are there outstanding returns?
- Does the liability relate to December 31, 2025 or an earlier period?
This matters because the amnesty applies to specific periods and specific types of liabilities.
KRA says that once the qualifying conditions are met, the taxpayer’s ledger is updated and an Amnesty Certificate is made available through iTax.
Bottom line
Principal tax is the underlying tax amount you owe KRA.
It is different from the interest, penalties and fines that may be added to the account.
Under Kenya’s 2026 tax amnesty, KRA is offering 100% relief on qualifying interest, penalties and fines, but the principal tax itself is not cancelled.
If you still have qualifying principal tax from periods up to December 31, 2025, you need to settle it by December 31, 2026 — either through a qualifying lump-sum payment or an approved payment arrangement that is fully cleared within the amnesty period.
So if your KRA account says you owe KSh150,000, don’t assume that KSh150,000 is all principal tax. Break down the bill first. The difference could determine how much you ultimately need to pay under the 2026 tax amnesty.
Last updated: September 8, 2026
