Co-founder and CTO of Seferi. Responsible for the product's technical architecture and for turning the road freight operation — the line running from an incoming email to an issued invoice — into working software.
Seferi is one of the products built within Sirius AI Tech. It lets road freight carriers run quoting, trips, documents and invoicing in one place.
He signs the regulatory and accounting articles on the blog. Content published on U-ETDS declarations, transport waybills, VAT withholding on freight invoices and freight rate calculation goes through his review.
Articles he signs
Regulatory statements are grounded in official sources and every article lists its references. Because amounts and thresholds change annually, the articles give no figures and point readers to the competent authority instead.
- Who Pays the K Belgesi Fine? [2026]The fine goes to neither the driver nor the vehicle owner, but to the operating licence holder who took on the carriage — even when the truck belongs to someone else.
- What Is a Vehicle Card (Taşıt Kartı)? [2026]The vehicle card is not the licence itself but the proof that a given plate is registered to it — and roadside, the burden of proof rests on the card.
- Which Operating Licence Do You Need? K1, K2, C2, L1 [2026]The licence type is decided by the nature of the work, not by the trucks you own: are you moving your own goods, or someone else's for a fee?
- How Is Dispatch Planning Done?You cannot split thirty jobs across twenty vehicles in your head; dispatch planning is a concrete chain of decisions from order to sequence.
- How Do You Run Dispatch Planning in Excel?What breaks dispatch planning in Excel isn't the spreadsheet — it's two people filling the same one with different decisions at the same time.
- How Are Toll Charges Calculated? Gate-by-Gate MethodA lump-sum toll estimate almost always falls short on motorway-heavy routes; the correct method is to add up every gate on the route one by one.
- Which Trip Should a Toll Charge Be Booked To?A toll statement lists a whole month in one sheet; it doesn't say which charge belongs to which trip — someone has to make that match.
- Motorway or Toll-Free Road? Choosing a RouteA toll-free route looks cheap, but a decision made without weighing all three cost lines together isn't really a route choice — it's just habit.
- How to Calculate Freight Cost: A Carrier's Real Cost FormulaFreight cost is not the price quoted to the shipper; it is the sum of the ten cost items a carrier covers to make a trip happen.
- How to Calculate and Reduce Empty Miles in TruckingThe empty-miles ratio is a fleet's invisible cost: here is the formula, why empty running happens and how operations cut it down.
- How to Calculate Profit per TruckThe vehicle is what earns, not any single trip: the full per-truck chain from revenue to net profit, item by item, with a worked monthly example.
- How to File a U-ETDS Freight Declaration, Step by StepThe declaration has to be filed before the carriage starts, and the Ministry allows a web service to send it so nobody has to open the e-Devlet portal.
- How Much Is the U-ETDS Penalty? Warning Points [2026]The sanction is not a flat fine but a warning point balance sitting on your authorisation certificate, and a clean three-month period removes part of it.
- U-ETDS Record Rejected: Causes and How to Fix ItIf the system rejects the record, the trip was never declared — and a carrier that never reads the response only finds out at an inspection.
- Transport Waybill vs Dispatch Note in TürkiyeThe dispatch note is issued by the seller or the collecting buyer and the transport waybill by whoever carries the goods for a fee, so a paid load travels with both.
- Transport Waybill Penalty in Türkiye [2026]The penalty falls on whoever carries the goods for a fee, not the seller, and your customer's dispatch note does not close your own obligation.
- How to Issue a Freight Invoice: Step by Step [2026]An invoice never arises on its own: get the quote, the trip and the transport waybill right, and the invoice comes out right.
- Freight VAT Withholding (Tevkifat) Rate and Limit 2026In freight transport the rate is 2/10, and the limit is checked on the VAT-inclusive total rather than the service fee.
- How Is Road Freight Rate (Navlun) Calculated? [2026]What breaks a freight rate is not the formula but the items that never reach the quote: the empty return leg and the tolls along the route.
- Where Does Excel Break Down in Trip Tracking?Excel is the right tool at small scale; the problem is never the file itself, but what happens once more than one person writes into it.
- Adding a Vehicle to a K Authorisation CertificateAdding a vehicle is not a filing step: the plate's notification duty, its waybill and its standing in a roadside inspection all change with it.
- How to Prepare a Freight Quote Using AI [2026]What AI does in a freight quote is not setting the price but turning a free-text enquiry into a structured trip request.
- How Does AI Route Optimisation Work in Road Freight?The shortest way is often the most expensive one, because route optimisation is a balance struck between distance, tolls, driving time and the delivery window.