South Dakota, United States
Custom ERP and billing, AI agents, web applications and SaaS for financial services and healthcare businesses in Sioux Falls, SD. Built by Flip Retail in Jaipur, India, and delivered remotely, with working software every two weeks.
National tax, e-invoicing and data rules, with sources: United States guide. General information, not legal or tax advice. Last reviewed October 2026.
01 — Local economy
South Dakota's 1980 decision to lift interest-rate caps brought Citibank's credit-card operations to Sioux Falls, and card issuers and banks such as Citi, Wells Fargo and First PREMIER remain large employers. Sanford Health, one of the largest rural health systems in the US, and Avera Health are headquartered here, Smithfield's pork plant processes hogs from across the region, and ethanol producer POET runs its business from the city.
English and Spanish
02 — Industries
What we would build first for the industries Sioux Falls is known for.
03 — Local rules
On top of the national rules summarised above.
| South Dakota | Sales tax: 4.2% state rate plus municipal taxes, with a broad base that includes many servicesPrivacy: No comprehensive state privacy law (sector laws apply) |
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General information, not legal or tax advice. Last reviewed October 2026. National tax, e-invoicing, data-protection and AI rules, with sources, are in our United States guide.
04 — Working together
Jaipur is 11 h 30 min ahead of Sioux Falls, SD on standard time, and 10 h 30 min ahead during daylight saving time there. A 09:00 start there is 20:30 in Jaipur. Office hours don't overlap, so we fix one call slot at the edge of the day and work asynchronously in between.
Local time, standard time.
Pranjal was excellent — fast, great at communicating, and completed the custom work.
50+ projects for 30+ clients in 11 countries over six-plus years.
05 — FAQ
Yes, remotely. Flip Retail is a software studio in Jaipur, India, with no office in Sioux Falls; discovery happens on video calls and you get working software every two weeks.
Jaipur is 11 h 30 min ahead of Sioux Falls, SD on standard time, and 10 h 30 min ahead during daylight saving time there. A 09:00 start there is 20:30 in Jaipur. Office hours don't overlap, so we fix one call slot at the edge of the day and work asynchronously in between.
Yes. Invoicing handles South Dakota sales tax (4.2% state rate plus municipal taxes, with a broad base that includes many services) and the other states where you have nexus. If you or your customers want it, a custom ERP can connect to DBNAlliance through an accredited provider.
Yes. Current language models handle English and Spanish well, including mixed-language messages. We still test an agent in each language your customers use before it goes live, and route anything it is unsure about to your team.
Usually one module that fixes the most expensive problem first. For financial services & fintech that is often onboarding & KYC workflows and loan and policy lifecycle. It goes live early, and the rest of the system follows in two-week increments while your team is already using it.
Contact
Tell us about the process you want fixed. We reply within one working day.