The tax calendar became a file

Entry 6-1 established the threat model: the DIAN never reminds you, it only fines you. Today the defense got built, and the method is worth copying.

Inputs to Gemini 2.5 Pro in AI Studio: the DIAN’s tax-calendar PDF, the company’s RUT responsibility codes, the activity codes, the NIT’s last digit (deadlines key off it), with Google Search grounding on for verification ▸ 2:17. Then the move that turns advice into infrastructure: make me an .ics file ▸ 7:15. Imported into Google Calendar, every obligation for the fiscal year appears as dated events, and Gemini, unprompted beyond “remind me early for the slow ones”, attached two-weeks-before and three-days-before alarms to the annual consolidated deadline, time enough to find an accountant ▸ 10:06.

la DIAN no avisa; el calendario ahora sí →

Filing the first bimonthly advance early (deadlines are ceilings, not appointments) produced its own findings: the forms are “easier to understand in Chinese”, auto-filled with zeros only because there’s no revenue yet ▸ 12:19, and a surprise tax nobody mentions at incorporation: ICA, the municipal industry-and-commerce rate, a per-thousand levy each municipality sets on its own ▸ 14:38.

The philosophical coda belongs to entry 6-2’s lineage, now with a Taoist citation: overload a people with rules and they rebel. Sharper on camera: they create the system, and then the expert in the system is born, to help everyone who can’t navigate it ▸ 17:47. A state that simply told you what to pay would mint a million businesses ▸ 18:43. Until then: PDF in, .ics out, fines dodged…