A Payment Reference Number: a unique code SHA issues for each monthly payment. It ties a specific payment to a specific contribution month on your ledger.

Is the SHA PRN the same as the KRA PRN?

No, and confusing them is a real risk. KRA issues a Payment Registration Number on iTax, paid to M-PESA paybill 222222. SHA issues a Payment Reference Number, paid to paybill 200222. Same three letters, different issuer, different number, different destination.

Why can I not generate a new PRN?

Because a penalty is outstanding. SHA blocks the generation of a new PRN until the penalty is settled, which means you cannot pay the current month until the arrears are cleared first.

Where do I see my PRN and my penalties?

Generate a statement of account on the SHA portal at afyayangu.go.ke. It shows your contribution history and any penalties. For help, dial 147 for the SHA contact centre.

Do I need a PRN to pay on M-PESA as an individual?

A member paying on paybill 200222 enters their National ID as the account number. The PRN matters where the payment has to be matched to a specific assessed month, which is most visible on the employer and penalty side.

SHA PRN explained: the reference that unlocks payment

What a SHA PRN actually is

SHA describes it plainly: a Payment Reference Number is a unique code for each monthly payment [Source 1]. Its job is matching. A contribution system that assesses you monthly needs to know which month a given payment settles, and the PRN is what carries that.

You will meet it most often in two places: on the employer side, where the E-Slip and PRN machinery route a payroll batch to the right submission month (see the SHA E-Slip guide), and on the penalty side, where it becomes a gate.

It is not the KRA PRN

This deserves its own section because the collision is unusually easy to fall into. Kenyans who pay any tax already know a "PRN" — and it is a different animal.

	KRA PRN	SHA PRN
Stands for	Payment Registration Number	Payment Reference Number
Issued on	iTax	SHA portal / afyayangu.go.ke
M-PESA paybill	`222222`	`200222`
Covers	A specific tax liability	A specific contribution month

The two paybill numbers are close enough to mistype: 222222 and 200222. If you hold both a KRA PRN and a SHA obligation in the same week, check the paybill against the reference you are quoting before you confirm. See KRA PRN not reflecting for the tax side.

The part that surprises people: penalties block the next PRN

SHA states it directly: if penalties are unpaid, the system blocks the generation of a new PRN until the penalty is settled [Source 1].

Follow that through and it changes how arrears behave. The intuitive plan when money is tight is to stay current and clean up the backlog later — keep paying this month, deal with the old months when you can. Under SHA that plan does not run. No new PRN means no way to record the current month, so the arrears are not a parallel problem you can defer; they sit in front of everything.

For an employer, the same gate stacks on top of two others already described by SHA:

The penalty itself, 2% per month on the unpaid amount under section 27(6) of the Social Health Insurance Act 2023 [Source 2].
Non-compliance flagging, where the employer is marked non-compliant and the employees are marked inactive [Source 2] — the staff lose access to care while the dispute is the employer's.

How to see your PRN, your contributions and your penalties

Generate a statement of account on the SHA portal. It carries your contribution history and any penalties [Source 1].
Log in at afyayangu.go.ke with your ID and PIN.
If you are penalised, SHA sends a system-generated SMS and email, and the amount appears on the statement [Source 1]. Do not wait for the SMS to be your only signal — check the statement.
For anything unresolved on contributions, PRNs or penalties, dial 147 (SHA contact centre) [Source 1], or 0800 720 601 toll free.

Waivers and amnesty: what is real today

SHA says it is developing structured waiver and amnesty processes in three categories — non-salaried households, employers, and system-triggered errors — with approval workflows and dashboards still being built [Source 1].

That is worth knowing about and worth asking about on 147 if a system error caused your penalty. It is not something to plan around. Nothing published names a rate, a cut-off or an application route, and the penalty module has been live and accruing prospectively since 10 July 2025 [Source 1].

Sources

PRN definition, penalty blocking of new PRNs, statement of account, SMS and email notification, waiver and amnesty status, penalty module go-live of 10 July 2025, and contact centre 147: sha.go.ke/faqs, FAQs on SHA Penalty Administration, accessed 12 September 2026.
Penalty rate and compliance flagging: same source, citing section 27(6) of the Social Health Insurance Act 2023 and the Social Health Insurance Regulations 2024.
SHA member portal: afyayangu.go.ke. SHA toll free 0800 720 601.