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Platinum Software
Sold by Catalyst Computer Systems Ltd and recognised by HMRC for PAYE. General payroll for employers. The product name gives no further specialism, so this is what HMRC recognising it for PAYE tells us.
What we know, and what we do not
HMRC’s recognition list gives a supplier name and a product name. Everything below is either taken from that list, derived from the product’s own name, or read from Catalyst Computer Systems Ltd’s website on 25 September 2026. We have not used the product, and we do not publish scores or star ratings, because we would be making them up.
| Recognised by HMRC | Yes, for PAYE |
|---|---|
| What its name says it does | General payroll for employers. The product name gives no further specialism, so this is what HMRC recognising it for PAYE tells us |
| Pricing | Quote only No published price. The supplier asks you to request a quote or book a demo. |
| Supplier site | www.catalyst-uk.com |
| Last checked | 25 September 2026 |
We do not publish a price for this product. Not because we could not find a figure, but because reading prices off marketing pages automatically proved wrong about half the time: tiers, promotional rates, third-party costs and customer testimonials all look alike to a machine. The methodology gives the examples. Check Catalyst Computer Systems Ltd’s own page for the price, and treat anyone publishing a confident figure for all 177 products with suspicion.
The company behind it
Catalyst Computer Systems Ltd trades as CATALYST COMPUTER SYSTEMS LIMITED, company number 02382593, on the Companies House register. It was incorporated 11 May 1989, which makes it 37 years old. Its registered office is in Loughborough.
| Registered name | CATALYST COMPUTER SYSTEMS LIMITED |
|---|---|
| Company number | 02382593 |
| Status | Active |
| Incorporated | 11 May 1989 (37 years) |
| Registered office | Loughborough, LE11 3GE |
| Last accounts made up to | 31 December 2024 |
| Next accounts due | 30 September 2026 |
Company data from the Companies House register, read on 26 September 2026. Matched to the supplier by name, conservatively: where we could not be certain which company a supplier is, this section is left off rather than filled in with a guess.
Others of the same kind
Payroll products from elsewhere on HMRC’s list, with the ones that publish a price first.
| Product | Supplier | Pricing | Their page |
|---|---|---|---|
| Primo Payroll | Accentra Technologies Ltd | Price published | Pricing |
| Solus Online Payroll | Accentra Technologies Limited | Price published | Pricing |
| LivePay | Central Computer Management Ltd | Price published | Pricing |
| Ciphr Payroll | Ciphr Limited | Price published | Pricing |
| Clear Books | Clear Books Limited | Price published | Pricing |
| Employment Hero Payroll | Employment Hero (UK) Ltd | Price published | Pricing |
| FreeAgent | FreeAgent Central Ltd | Price published | Pricing |
| Payroll Manager | Moneysoft Limited | Price published | Pricing |
Source: HMRC’s recognised payroll software list, under the Open Government Licence, plus Catalyst Computer Systems Ltd’s own published pages. We are not accountants and this is not advice about which product suits your business. Inclusion here is never paid for, and outbound links may earn us a commission without changing what we publish: how we make money.