TSC Promotion Interviews Through 25 September: Secondary, TTC and CSO Panels — Documents and Scoresheet Logic

Teachers · TSC · Promotions · Interviews · Scoresheets · September 2026

Primary promotion interviews wrapped around mid-September. Post-primary panels for secondary and teacher training colleges, plus curriculum support officer interviews, run through 25 September 2026. With about 34,016 vacancies under Adverts 78/2026–107/2026 and Circular 13/2026 still framing the process, this is the mid-window field guide: which panel level you face, what scoresheets actually reward, and which documents invitation letters commonly demand.

Teachers still talk about “the interviews” as if every grade sat the same room with the same adults. They do not. Primary interviews ran roughly 8–15 September 2026 and are effectively done for this window. The remaining heat sits on secondary, TTC, and CSO lanes scheduled 17–25 September 2026. If your invitation falls in that second band, this piece is for you. If you are still grieving a primary date you already attended, do not recycle anxiety into a colleague’s secondary folder — different panel, different scoresheet accents, same need for calm evidence.

The vacancy scale remains the one teachers already know from the advert season: about 34,016 promotion vacancies across Adverts 78/2026 through 107/2026. Process hygiene still sits under Circular No. 13/2026 dated 24 July 2026, signed in the acting lane by Dr Evaleen J. Mitei, and framed as valid through 30 June 2027. That circular is not a WhatsApp summary. It is the document that tells counties how shortlisting, notice, panels, and equity rules are supposed to behave.

Calendar — where we are in the window

• Primary interviews — about 8–15 September 2026 (completed for this cycle’s main window).
• Secondary / TTC / CSO interviews — 17–25 September 2026 (mid-to-closing window now).
• Shortlisting ratio commonly applied: 1:3.
• Notice — at least seven days before interview where the circular’s notice logic applies; if your notice felt shorter, record the date you received it without inventing a courtroom on Facebook.

Mid-window behaviour matters. Candidates who treat 25 September as “plenty of time” discover that document lacunas do not heal overnight. Photocopy shops close. Acting letters hide in a former principal’s drawer. A TPAD printout that “was on the laptop” becomes a speech instead of a page.

Which panel level hears you

Circular practice sorts panels by institutional level. Hold the map without pretending every county names rooms identically:

• Sub-county panels — primary promotions, including heads and deputies in that lane.
• County panels — post-primary promotions, including deputies in the secondary/TTC world.
• Regional panels — principals, TTC leadership lanes, and CSOs.

If you are a secondary teacher aiming upward, do not rehearse a primary-head anecdote as if it were your scoresheet. If you are a CSO candidate, do not borrow a principal’s storytelling style and ignore field-support evidence. Panel level is not prestige cosplay. It is which adults are authorised to mark which grade story.

Scoresheet logic — 100 marks, grade-specific weights

Across grades, scoresheets commonly weigh some mix of: academic and professional qualifications; acting capacity; length of stay in grade; TPAD performance evidence; age; professional assignments under bodies such as TSC, KNEC, KICD, MoE, CEMASTEA; and co-curricular contribution. The important sentence is the next one: weights vary by grade. A factor that is decisive for one grade can be a small slice for another.

Illustrative patterns teachers are using from Circular 13/2026-era scoresheet reporting:

• D5 Chief Principal example — length of stay 45, age 30, TPAD 10, qualifications 5, professional assignments 5, co-curricular 5 (100-mark logic).
• CSO I (D2) example — age 45, length of stay 40, with qualifications / management / computer competence commonly at 5 each in the reported breakdown teachers cite.
• CSO II (C5) example — length of stay 35, age 35, TPAD 20, qualifications 5, computer certificate 5.

Some administrative grades also combine responsibility and length-of-stay logic into a heavier block — often discussed as climbing toward roughly the 50–55 mark zone when those factors are paired. Read that as a warning against under-preparing service history, not as permission to invent a private scoresheet on a hotel notepad the night before.

What “acting capacity” and “professional assignments” mean in plain language

Acting capacity is not a rumour that you “were almost deputy.” It is documented acting service — letters, periods, duties — that a panel can verify. Professional assignments are the national and institutional extras that show you were trusted beyond the ordinary timetable: exam duties under KNEC frameworks, curriculum or training assignments linked to KICD or CEMASTEA, MoE taskings, TSC-recognised roles. Bring proof. Oral poetry about “supporting the county” without a letter is how candidates entertain panels without scoring.

Documents — commonly required; follow your invitation

Reporting and candidate practice commonly point to a core pile:

• National ID
• Academic and professional certificates
• TSC registration evidence
• Latest payslip
• Last promotional letter
• Acting letters and professional assignment letters where claimed

Phrase that carefully for staffrooms: these are commonly required; follow your invitation letter if it adds or narrows the list. Do not omit a document because a colleague in another grade “was not asked.” Do not add decorative certificates that invent a qualification you do not hold. Panels have seen both mistakes.

Equity rules that still bind the room

• PWD target — at least about 5% in the promotion frame as commonly stated.
• Gender balance — not more than two-thirds of the same gender in the relevant selection logic.
• Accessible venues — candidates who need accessible spaces should not discover a first-floor-only room as a surprise; raise it through the channel your county uses as soon as the venue is known.
• Sign-language interpreter — allowed where needed; arrange through the official process rather than hoping a cousin can “help at the door.”

Equity language is not optional poetry. It is how a Commission defends a list when someone later alleges capture. Candidates should use the rights that exist without turning the interview into a protest rally. Panels mark scoresheets; public fights belong in other rooms.

Integrity after the handshake

TSC may revoke a promotion outcome for fraud or material error. Results are published through the Commission’s official channels — typically discussed as the TSC website for public posting — not through a screenshot of a WhatsApp “congratulatory list” with no provenance. If someone offers to “fix” a scoresheet for cash, that person is not your career adviser. They are a future revocation story with your TSC number in the file.

How to prepare in the days left before 25 September

1. Re-read your grade’s factor weights — build answers that serve heavy marks first.
2. Print and order documents the way the invitation sequences them; add a one-page index.
3. Rehearse acting and assignment stories with dates — month, year, who signed, what changed in the school.
4. Pull TPAD evidence that matches the period the scoresheet expects; do not bring a random old printout and call it currency.
5. Plan travel and arrival as if lateness were a scoresheet item — because practically, it is a first impression item.
6. Sleep — panels can tell the difference between composure and caffeine theatre.

What not to do in the waiting bay

• Do not crowd candidates who just exited for “the questions.” Leaked questions without your grade context are noise.
• Do not display original certificates on a dusty bench where wind and theft compete.
• Do not narrate your salary grievances as an opening statement.
• Do not disparage your current principal to prove leadership readiness. Panels hear bitterness as risk.

For CSOs specifically

Curriculum support officer scoresheets lean hard on age and length of stay in the examples teachers cite, with smaller slices for qualifications, management competence, and computer certification depending on grade. Your interview answers should sound like field support: schools you actually coached, tools you actually helped teachers use, conflicts you actually de-escalated without becoming the story. A CSO who only speaks in national slogans has not yet spoken in CSO.

For secondary and TTC candidates

Post-primary panels will hear institutional complexity — boarding pressures, subject combinations, student leadership, exam integrity culture. Tie every claim to a document or a verifiable episode. If you claim KNEC or CEMASTEA assignments, bring the letter. If you claim acting deputy service, bring the letter and the dates. Secondary staffrooms are full of unofficial “we all know she runs the place” narratives. Scoresheets are not staffroom folklore.

Heads and deputies already through primary — how to support colleagues

If your primary interview is done, help without contaminating integrity: share document-check habits, not claimed question banks; share travel tips, not bribery folklore; share calm. A school that turns promotion season into a rumour factory damages the teachers still walking into county and regional rooms.

Screenshot checklist before you enter

• I know whether I am in the 17–25 September secondary/TTC/CSO band.
• I know my likely panel level (county vs regional) for my grade story.
• I have mapped my answers to grade-specific weights — including length of stay / age / TPAD where heavy.
• My document pile matches the invitation; acting and assignment letters included where claimed.
• I understand PWD, gender, accessibility, and interpreter provisions exist for a reason.
• I will treat official result publication as the only congratulations that count.
• I will not buy a short-cut that can be revoked.

Bottom line

TSC’s promotion interview window for post-primary and CSO candidates runs through 25 September 2026, after primary interviews closed around 15 September, against a backdrop of about 34,016 vacancies under Adverts 78/2026–107/2026 and Circular 13/2026 (24 July 2026, Acting CEO Dr Evaleen J. Mitei, valid to 30 June 2027). Shortlisting at 1:3, notice of at least seven days, and panels tiered by sub-county / county / regional level still structure the process. Scoresheets are grade-specific 100-mark instruments — from D5 Chief Principal patterns that load length of stay and age heavily, to CSO examples that shift TPAD and computer slices — and some admin grades pair responsibility with length of stay toward the mid-fifty mark zone. Bring the documents your invitation requires, score the factors your grade actually weights, use equity provisions without drama, and remember that fraud-tainted outcomes can be revoked when results go public on official TSC channels. The room does not owe you a promotion. It owes you a fair scoresheet. Your job is to make that scoresheet easy to fill with truth.