The best point of sale for small businesses.
And it's not even close.

Diego is the point of sale that keeps your books while you sell: sales tax, expenses, bills and reports, ready to export to QuickBooks.

Works on your computer, tablet or phone. We help you set it up.

What kind of business do you run?

Tap yours to see everything Diego does for you. And we add more every month.

Pick one to see its features

Stop paying your bookkeeper to retype your sales.

Diego turns every sale, expense and bill into journal entries balanced to the cent, in the format QuickBooks Online imports. Your bookkeeper reviews instead of retyping, so month-end takes a fraction of the time.

Try it free for 14 days

Everything your business needs, without the hassle.

Every sale is recorded, taxed and booked. You focus on your customers, and your bookkeeper stops retyping.

Books that keep themselves, ready for QuickBooks

Every sale, expense and bill lands in your books automatically. At month-end you export, your bookkeeper imports, done.

  • Profit and loss, cash flow and a chart of accounts named like yours in QuickBooks
  • Journal entries balanced to the cent, exported as a CSV that QuickBooks Online imports
  • Sales tax report by month, with tax-exempt customers and their certificates
  • Bills with Net 15/30/60 terms, 1099 vendors and a mileage log at the IRS rate
P&LProfit & loss
TaxSales tax report
1099Vendors

Sell fast

A clear register that checks customers out in seconds.

  • Cash, card and bank transfer
  • Inventory that updates itself
  • Estimates that turn into invoices
  • Customers and their purchase history
  • Products and barcodes from your phone

Your numbers, clear

Your books keep themselves while you sell.

  • Profit and loss and cash flow
  • Graphic reports you can export to Excel
  • Expenses by category and bills by due date
  • What customers owe you and what you owe vendors

Full control of your register

You always know who did what.

  • PIN for discounts, voids and closing
  • Shift opening and closing with cash count
  • Permissions per employee
  • Your data safe in the cloud, from any device

What your bookkeeper gets, without typing a thing.

One click in Diego exports a QuickBooks-ready package. Less data entry for your bookkeeper means fewer billable hours for you.

Journal entries

Daily sales by payment method, discounts, sales tax and tips, plus every expense and bill, balanced to the cent.

Your chart of accounts

Rename accounts to match QuickBooks once, and every export lines up with your books. Cash or accrual basis.

Sales tax, done

Taxable and non-taxable sales by month, exempt sales with certificate numbers, and your tax payments on record.

Vendors and 1099s

Purchases and payments by vendor, amounts owed, and 1099 vendors flagged with their W-9 address.

Bills and aging

Bills with Net 15/30/60 terms, what's due and overdue, and deliveries linked so nothing is counted twice.

Mileage and owner moves

Trip log at the IRS rate per mile, plus owner investments, draws and loans, ready for tax time.

Diego exports in the format QuickBooks Online imports (journal entries CSV) plus a full Excel workbook with the import order explained. It doesn't require a live connection to QuickBooks.

Your numbers, in a report you understand at a glance.

Diego turns your sales and expenses into financial reports with charts, ready to review with your partner, your accountant or your bank.

  • Pick any period: a month, a quarter or exact dates
  • Compare two periods side by side and see what went up or down
  • Revenue, gross profit, expenses and net profit with their % change
  • Export to Excel with the charts, plus the data on its own tab
See my reports: try it free
Financial report
SEPTEMBER 2026
Revenue$ 48,310▲ 15.4%
Gross profit$ 19,560▲ 13.1%
Operating expenses$ 11,230▲ 5.6%
Net profit$ 8,450▲ 18.7%

Revenue over time

Revenue breakdown

Compared with the previous monthXExport to Excel

Getting started is simple.

Create your free account

Try Diego for 14 days, no credit card needed.

Set up your business

Load your products, tax settings and users. If you need help, we are here for you.

Start selling

From day one, every sale is invoiced and booked.

Diego vs. el sistema de siempre. Lo demás es cuento.

Diego vs. the old system. It's not even close.

DiegoEl sistema de siempre
Dónde funcionaEn cualquier computadora, tableta o celularEn la computadora vieja de la caja. No la toques.
ActualizacionesLlegan solas, sin que hagas nada«El técnico viene el martes». ¿De cuál mes?
NCF y 606, 607, 608Listos mientras vendesExporta, copia, pega y reza
Si se va el internetSigues vendiendoSe va la venta
Tu contadorSu propio portal, gratisLe mandas fotos borrosas por WhatsApp
FacturasCon tu logo, por correo o WhatsAppImpresas… cuando hay tinta
Para empezar14 días gratis, sin tarjeta, y te ayudamosFirma aquí, aquí y aquí

«El sistema de siempre» no es ninguna marca en particular. Bueno… tú sabes cuál.

DiegoThe old system
Runs onAny computer, tablet or phoneThat one PC by the register. Don't touch it.
UpdatesAutomatic, nothing to install"Version 3.2" from 2014
Your booksQuickBooks-ready exportRetype everything at month-end
Internet downKeep sellingSale over
Getting started14 days free, no card, and we help you set upSign here, here and here

"The old system" isn't any brand in particular. Well… you know the one.

Frases típicas del sistema de siempre 🙄

«Eso solo funciona en la computadora de la caja»«El técnico viene el martes»«Hay que instalar la actualización»«El 607 lo hace el contable a mano»«Se fue el internet, no se puede vender»«Esa función viene en la próxima versión»

Con Diego, eso ya no es tu problema. Los demás, que sigan cogiendo lucha.

Classic lines from the old system 🙄

“It only works on the computer by the register”“The technician comes Tuesday”“You need to install the update first”“Your accountant retypes it at month-end”“Internet is down, we can't sell”“That feature is coming in the next version”

With Diego, that's not your problem anymore. And it's not even close.

Built for the way you work.

Restaurants

Table map, orders by seat, split checks and tips.

Repair shops

Repair orders, vehicles per customer, estimates, PDF invoices and technician commissions.

Salons and barbershops

Schedules by staff member, appointments confirmed by email and checkout at the same register.

Stores

Inventory, suppliers, deliveries and low-stock alerts.

Administración de propiedades

Plazas, edificios y locales: contratos, facturas con NCF cada mes, portales para inquilinos y dueños. Ver más →

Condominios

Cuotas de mantenimiento, votaciones en línea, estado mensual y portal para cada condómino. Ver más →

Contadores

Portal gratis para ver los 606, 607 y 608 de todos tus clientes de Diego en un solo lugar. Ver más →

Your information, protected to the highest standard.

Your data is yours.We never sell your information or your customers' information, and we don't share it with other companies for advertising or commercial purposes. Read the policy →

Diego stores your data on cloud infrastructure audited by independent third parties, meeting the security standards used by banks, hospitals and large companies.

SOC 2Type II
SOC 3Audited
ISO 27001Information security
ISO 27701Data privacy
ISO 9001Quality management
GDPRPrivacy

It also complies with HIPAA, CCPA and CPRA, among other international privacy regulations.

  • Encrypted connection end to endEverything traveling between your register and the cloud is protected with HTTPS.
  • Automatic backupsYour information backs itself up. If a computer breaks or goes missing, you lose nothing.
  • Protected passwords and PINsThey're stored encrypted: nobody can see them, not even us. After repeated failed attempts, access is locked.
  • Your business, kept separateEach business can only see its own information, and each employee only what their role allows.
  • Everything is recordedYou know who approved every void, discount and shift close. Accounting entries are never deleted.

Frequently asked questions

Do I need special equipment?

No. Diego runs in the web browser on your computer, tablet or phone. You can use your receipt printer if you already have one.

Does Diego handle taxes on my sales?

Yes. In the US, Diego calculates sales tax, supports tax-exempt customers with their certificate numbers, and prepares your sales tax report. In the Dominican Republic, it also issues fiscal receipts (NCF).

Does it work with QuickBooks?

Yes. Diego exports your journal entries as a CSV that QuickBooks Online imports, plus an Excel workbook with your chart of accounts, vendors, bills, expenses, sales, P&L, cash flow, sales tax, owner transactions and mileage, with the import order explained. Your bookkeeper reviews and imports instead of typing it all in.

Will it lower my bookkeeping costs?

For most small businesses, yes: the time-consuming part of bookkeeping is entering sales, expenses and bills by hand. Diego records them as they happen and hands your bookkeeper balanced journal entries, so their work shifts from data entry to review.

How secure is my data?

Very secure. Diego stores your information on cloud infrastructure with international security certifications audited by independent third parties: SOC 2 Type II, SOC 3, ISO 27001 (information security), ISO 27701 (privacy) and ISO 9001 (quality), and compliant with regulations such as GDPR, HIPAA and CCPA. On top of that, your connection is encrypted, your information is backed up automatically, passwords and PINs are stored encrypted and locked after repeated attempts, and each business's data is fully separated. And your data is yours: we never sell it or share it with other companies for advertising or commercial purposes.

What is the best POS system for a small business?

We think it's Diego, and we invite you to compare. It brings together your point of sale, estimates and invoices, inventory with barcode scanning, sales tax with tax-exempt customers and books ready for QuickBooks Online, with features made for retail stores, restaurants, auto repair shops and salons. It runs on your computer, tablet or phone, keeps selling if the internet goes down, and you can try it free for 14 days.

Can I try Diego for free?

Yes. The free trial lasts 14 days, no credit card needed. It includes up to 2 users and 100 sales; official tax receipts are not issued during the trial. If you choose a plan, your data stays exactly as it is.

Questions or comments?

Write to us and we'll reply within one business day.

  • Questions about Diego, plans or pricing
  • Help getting started with your free trial
  • Suggestions and comments

We'll reply within one business day.

🔒 We never sell or share your data with other companies. We only use it to reply to you.

Try it free for 14 days